12124011420 has 96 divisors (see below), whose sum is σ = 37747261440. Its totient is φ = 3230660160.

The previous prime is 12124011409. The next prime is 12124011437. The reversal of 12124011420 is 2411042121.

12124011420 is a `hidden beast` number, since 1 + 2 + 1 + 240 + 1 + 1 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12124011393 and 12124011402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786709 + ... + 801971.

It is an arithmetic number, because the mean of its divisors is an integer number (393200640).

Almost surely, 2^12124011420 is an apocalyptic number.

12124011420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12124011420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18873630720).

12124011420 is an abundant number, since it is smaller than the sum of its proper divisors (25623250020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12124011420 is a wasteful number, since it uses less digits than its factorization.

12124011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752 (or 16744 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12124011420 its reverse (2411042121), we get a palindrome (14535053541).

The spelling of 12124011420 in words is "twelve billion, one hundred twenty-four million, eleven thousand, four hundred twenty".